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RE: [RFC] usb-phy-generic: Add support to SMSC USB3315

From Peter Chen <peter.chen@nxp.com>
Newsgroups linux.kernel
Subject RE: [RFC] usb-phy-generic: Add support to SMSC USB3315
Date 2017-06-09 10:30 +0200
Message-ID <tQnsS-7B7-17@gated-at.bofh.it> (permalink)
References (7 earlier) <tOWXL-1fC-1@gated-at.bofh.it> <tPqCv-3oY-43@gated-at.bofh.it> <tPqCv-3oY-41@gated-at.bofh.it> <tPKKS-8hH-27@gated-at.bofh.it> <tQ4Jz-4eB-3@gated-at.bofh.it>
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>
>I have a look at your patches (http://www.spinics.net/lists/linux-usb/msg157134.html)
>and I wonder if power sequence is applicable only on hub node?

No, power sequence can be used for any devices which needs to carry out power on
before probe.

> hub are probed too
>late (after ci_ulpi_init). Do you think it is possible to read a power sequence in dts
>from ci_ulpi_init?
>

I think the suitable place for power sequence is at ulpi_of_register, some ULPI PHYs
need to carry out power on before reading ID.

Peter

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Thread

Re: [RFC] usb-phy-generic: Add support to SMSC USB3315 Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> - 2017-06-08 14:30 +0200
  RE: [RFC] usb-phy-generic: Add support to SMSC USB3315 Peter Chen <peter.chen@nxp.com> - 2017-06-09 10:30 +0200
    Re: [RFC] usb-phy-generic: Add support to SMSC USB3315 Fabien Lahoudere <fabien.lahoudere@collabora.co.uk> - 2017-06-09 13:20 +0200
      RE: [RFC] usb-phy-generic: Add support to SMSC USB3315 Peter Chen <peter.chen@nxp.com> - 2017-06-12 03:30 +0200

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